2. Given equal masses, which item will need more heat to be raised one degree? a) Water b) Ice c) Olive Oil d) Silicon
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Step 1: Understand the concept of specific heat capacity, which is the amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius. Show more…
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You have two samples of iron metal. One is 40 mg and the other is 80 mg. You heat each of them to 95°C and then plunge each into a 1 L sample of water at 25°C. You also conduct this experiment with olive oil instead of water. Which of the following would be a true statement?a. The temperature change of the water heated by adding iron will be greater than the temperature change of the olive oil obtained by adding iron of the same mass and temperature.b. The temperature change of the olive oil heated by adding iron will be greater than the temperature change of the water obtained by adding iron of the same mass and temperature.c. Both olive oil and water will be heated to the same temperature by adding masses of iron that have the same temperature.
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Liquid water and aluminium metal, each with a mass of 1 kilogram and at the same temperature, are placed in their own insulated containers. Each is heated by 10 kJ of energy, assuming the heat is evenly distributed across each mass. Which of the following statements is correct about their final temperatures? You may wish to refer to the data sheet. A) The final temperatures of both water and aluminium are the same. B) The final temperature of the water is lower than that of the aluminium. C) The final temperature of the water is higher than that of the aluminium. D) There is insufficient information to conclude about their final temperature.
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20. Raising the temperature of 10.0 g of water from 10.0 °C to 20.0 °C requires 100.0 cal of energy, while raising the temperature of 10.0 g of aluminum from 10.0 °C to 20.0 °C requires 22 cal. More calories are required to heat the water because A) water is a liquid and aluminum is a solid at 10.0 °C. B) ten grams of water occupies a larger volume than 10.0 g of aluminum. C) water has a greater potential energy than aluminum. D) water has a larger specific heat than aluminum. E) 10.0 °C is closer to the melting point of water than to the melting point of aluminum.
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